Exhaust-nozzle.



PATENTED JAN. 15, 1907'.

. .P. B. HOUGHTON.

EXHAUST NOZZLE.

APPLICATION IIILED FEB. 9. mos,

ATTORNEYS rm: mamas PETERS co, WASHINGTON. 0. c4

UTFD STATES ATENT orrion EXHAUST-NOZZLE.

Specification of Letters Patent.

Patented Jan. 15, 1907.

Application filed ebruary-9, 1906. Serial No. 300,339.

To aZZ whom it may concern.-

Be it known that I, PAUL B. HoUGnToN, a citizen of the United States,residing at Carpenter, in the county of Clark and State of South Dakota,have invented a new and useful Exhaust-Nozzle, of which the following isa specification.

This invention relates to exhaust-nozzles for locomotives, traction andthreshing engines, and the like, and has for its object to provide forvarying the area of the discharge end of the nozzle in a simple andimproved manner, whereby the forced draft through the stack of thelocomotive may be readily controlled.

With these and other objects in view the present invention consists inthe combination and arrangement of parts, as will be hereinafter morefully described, shown in the accompanying drawings, and particularlypointed out in the appended claims, it being understood that changes inthe form, proportion, size, and minor details may be made within thescope of the claims without departing from the spirit or sacrificing anyof the ad vantages of the invention.

In the drawings, Figure 1 is a plan view of the present exhaust nozzleshown in the smoke-box of a locomotive-boiler, the walls of the boxbeing in section. Fig. 2 is a central vertical sectional view of Fig. 1.Fig. 3 is a detail-cross-sectional view of the nozzle. Fig. 4 is adetail perspective view of the nozzle with the tiltable nozzle-sectionremoved.

Similar numerals of reference designate corresponding parts in all ofthe figures of the drawings. 1

The nozzle 1 of the present invention is substantially L-shaped or inthe nature of an elbow and includes the upright tapered nozzle member 2and the substantially horizontal tubular inlet stem member 3, leadingfrom the bottom of the nozzle proper. What will be termed the rear sideof the upstanding nozzle member is provided with a comparatively widelongitudinal slot or opening 4, intersecting the top of the nozzle andextending down to the inlet branch 3, there being rearwardly-directedwings or flanges 5 carried by the nozzle at opposite sides of the slot.Working within the slot is an adjustable nozzle portion 6, which isshaped to complete the nozzle and has a substantially horizontal arm 7extending rearwardly from the lower portion of the adjustablenozzle-section and pivotally supported, as at 8, between the flanges 5.The free end portion of the arm 7 works between a pair ofupstanding-guideshoulders 9, and the latter are pierced by correspondingopenings 10, extending below the arm for the reception of a beveled orwedge-shaped slide 11, which frictionally engages the under side of thearm. When the slide is forced inwardly, the arm 7 is swung upward, andthe adjustable nozzle-section 6 is swung into the nozzle, so as toconstrict the passage therethrough, and when the slide is turnedoutwardly the pressure of the exhaust through the nozzle will force theadjustable section 6 outwardly, so as to return the same to its original.position.

It will of course be understood that the present nozzle is designed tobe mounted in the usual position within the smoke-box 12 of asteam-boiler, the upright nozzle portion 2 being in alinement with thestack 3, so as to discharge upward into the latter. The inlet branch 3of the nozzle is connected in any suitable manner with the exhaust-pipesfrom the cylinders of the locomotive-for instance, by means of aT-coupling 14, which connects with the .inlet branch 3 and theexhaustpipes 15 and 16.

For convenience in controlling the slide 11 from the cab of thelocomotive a bell-crank lever 17 is fulcrum ed at 18 within the smokeboxand has one end connected to the slide 11 by means of a link 19. Theother arm of the lever works through a slot 20 in the adj acent wall ofthe smoke-box, and a suitable connecting-rod 21 extends rearwardly fromthe outer end of the lever to the cab, where it is in position forconvenient reach by the engineer.

Having thus described the invention, what is claimed is- 1. Anexhaust-nozzle having one tiltable section pivotally mounted in the endthereof, a controlling-arm rigidly connected with said tiltable sectioncloselyadjacent the pivotpoint thereof, and means acting upon saidcontrolling-arm for moving the tiltable section so as to-close or openthe nozzle.

2. An exhaust-nozzle having its discharge end open and provided with alongitudinal slot, a tiltable nozzle-section working in the slot andprovided with an outwardly-directed arm, and a tapered slide workingacross the armin frictional engagement therewith for controlling thetiltable nozzle-section.

3. An exhaust-nozzle including an elbow having its outlet branch openand provided ICC with a slot intersecting its open end, a tiltablenozzle-section working in the slot, an arm carried by the tiltablesection and lying across the inlet branch of the elbow, and a taperedslide working between the arm and the inlet branch in frictionalengagement with said members to move the arm and tilt the tiltablenozzle-section.

4. An exhaust-nozzle including an elbow" the slot and provided with anarm extending across the inlet branch of the nozzle, guide gagement withthe inlet branch of the nozzle and the arm.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in the presence of two witnesses.

PAUL B. HOUGHTON.

Witnesses:

B. F. FILBERT, O. T. SCHMIDT.

